# 1. 定义3个文档
docs = [
    "Python 是 编程 语言",
    "Java 是 编程 语言",
    "Python Python Python"
]

# 2. 分词（按空格分割）
tokenized_docs = [doc.split() for doc in docs]

# 3. 构建词表：去重 + 排序
vocab = sorted(list(set(word for doc in tokenized_docs for word in doc)))
print("✅ 词表：", vocab)

# 4. 生成BoW向量
def bow_vector(doc_tokens, vocab_list):
    return [doc_tokens.count(word) for word in vocab_list]

# 计算每个文档的向量
vec1 = bow_vector(tokenized_docs[0], vocab)
vec2 = bow_vector(tokenized_docs[1], vocab)
vec3 = bow_vector(tokenized_docs[2], vocab)

print("\n📌 各文档BoW向量：")
print(f"Doc1: {vec1}")
print(f"Doc2: {vec2}")
print(f"Doc3: {vec3}")